Removable base allows ease of installation on existing bins. Lap over design prevents moisture leakage and condensation. Mushroom shape design makes it more difficult for snow and moisture to enter the bin than with traditional goose neck designs. Vent measurements: 15" inside diameter, 18" outside diameter.
The number of vents required on a particular bin is dependent upon the volume of air being moved through the grain.
Roof vents required per bin*:
- 3 hp fan - 2
- 5 hp fan - 3
- 7 hp fan - 4
- 10 hp fan - 5
*Rule of thumb: 1 sq. foot opening for every 1000 CFM.